-/* number of characters left in xmit buffer before we ask for more */-#define WAKEUP_CHARS 256--/* Debugging... DEBUG_INTR is bad to use when one of the zs- * lines is your console ;(- */-#undef SERIAL_DEBUG_INTR-#undef SERIAL_DEBUG_OPEN-#undef SERIAL_DEBUG_FLOW--#define RS_ISR_PASS_LIMIT 256- static void change_speed(struct m68k_serial *info);